A/D conversion device provided with a calibration arrangement
US6081214A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Mar 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/76
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An A/D conversion device includes: an amplifier AMP provided with regulating means controlled by a control signal OC or GC for adjusting the value of its output voltage V2, and PA1 an A/D converter ADC2 intended to convert the output voltage V2 of the amplifier AMP into digital signals. The device includes means S0 or MUX for setting the input of the amplifier AMP at a reference potential when a calibration signal CALOS or CALG is active, and at least a calibration arrangement DEC0 or DECM each having PA1 a module comparing the output of the second converter ADC2 with a predetermined binary word, PA1 a module supplying the control signal OC or GC whose value depends on the result of said comparison, and PA1 means for storing the control signal OC or GC when the corresponding calibration signal CALOS or CALG is inactive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.